I don't think vent holes will do too much. I left out something in my last post- I believe the guy who added the fan actually added a small fan/dehumidifier unit like the kind you can buy for boats and RVs- check out Ebay.

Something to consider is that if you sail in salt water you will get salt on your sails- salt attracts moisture.

_________________Alan
'86 H16, Sail #89057

Last edited by aschaffter on Mon Mar 25, 2013 2:57 pm, edited 1 time in total.

i keep my boat at the sarasota sailing squadron. i store a laser and my hobie there , they have a field for mast up and covered racks for small boats, i was going to put the tube in the rack next to my laser. there is no room near my hobie and when it rains hard there is a couple in. of water next to my boat

Vents: I put 2 inch round louver vents from a home supply store in each end of my plastic tube. Anything that is plastic needs to be vented, and a cross flow of air is the best most can get with low maintenance. When I go sailing, the end of the tube stays off.